Editors' presses In recent days, the problem most commonly encountered by vegetable farmers is that it is very difficult for fruit and vegetables to sit on fruit. Even if they are sitting on fruit, they are all deformed fruit and their commerciality is greatly reduced. In fact, the recent Solanaceae vegetables are difficult to set fruit, malformed fruit, mainly due to the low temperature in the shed, weak light, and management has a direct relationship. Starting from the actual production conditions, this issue introduces some measures that should be taken to ensure that the fruit and vegetables of Solanum are sitting in the winter to help the vegetable farmers better cope with the bad weather in winter.
Weak trees and Wangke are to be well adjusted
Fruits that are difficult to pick up are very delicate or very prosperous. In fact, if the plant grows too weak or too prosperous, it will affect the fruit setting rate and the quality of fruit set. Only Zhuangke is the guarantee of high yield and stable production.
Weak trees, dwarf plants, thin stems, thin and small leaves and pale. Because of its lack of nutrition, less organic nutrients accumulate, resulting in some malformed fruits and difficult performance. Wang Shi, due to the plants growing too strong, over-prosperous, unbalanced growth between the ground and the underground, the root to crown ratio is small, leading to vegetative growth is stronger than reproductive growth, most of the nutrients produced by the plant supply the growth of stems and leaves, that is to say The prosperous tree did not result.
So, how can we make both weak and busy trees become strong trees? In addition to the comprehensive control of water control and temperature-controlled trees, chemical control can also be adopted.
Chemical control trees refer to the use of artificial plant growth regulators to control the growth of vegetables and cultivate strong trees. Compared with other measures, this measure has the advantages of immediate and easy operation.
For Wangshi, in production, vegetable growers often use chlormequat, booster, paclobutrazol, etc. to control their growth, but the concentration of plant growth regulator must be well mastered, otherwise it is easy to overshoot. For weak trees, chemical regulation can also be adopted. Commonly used plant growth regulators have more love, Yunda 120, and nucleotides.
Watering and fertilization should be well adjusted
In winter, solanaceous vegetables have slow rooting, less root system and less nutrient absorption. If there is even a cloudy day, the ground temperature will change drastically, and the chance of root damage will increase. Therefore, we must pay attention to watering in winter.
A vegetable farmer told the author that an eggplant shed in an acre of land uses about 15 kWh of electricity to pour water once. In order to save electricity, he drenches it every time he waters it, and then he does not water it for a long time until the shed is dry enough. Once again pouring enough water. In fact, this watering method is not desirable. The principle of watering is to see dry see wet, to keep the soil dry and wet. Because the soil is too dry or too wet, it can easily lead to abnormal fruit growth in eggplant vegetables. Generally, it is advisable to use water to steamed bread for watering. Avoid bountiful flooding and avoid water absorption, which may lead to difficulties in roots and result in fruit problems.
In general, there is not enough fertilizer and not strong trees; Therefore, nurturing a consistent and strong Zhuangshu requires starting from topdressing. Fertilizer method: First, fertilizer. Before the summer and autumn vegetables were planted, the vegetable farmers applied a large amount of manure and ternary compound fertilizer as base fertilizer, and they often ignored the application of trace elements (such as calcium, boron, and zinc fertilizers). For the two-year vegetable planting, when the vegetable growers are reforming, they do not apply base fertilizer. Therefore, timely supplementation of nutrients should be applied in winter to promote root growth and cultivate strong trees. The second is spray fertilizer. Spray fertilizer is foliar fertilizer, which can spray multiple fertilizers and spray a single fertilizer. For example, solanaceous vegetables can be sprayed with zinc leaf fertilizer after sapling and before flowering, which can not only prevent yellowing of the parietal lobe, but also enhance the plant's resistance to viral diseases. Solanaceous vegetables 7 days before flowering, spraying poly-boron 1500 times, can promote flower bud differentiation, is conducive to fruit set. The third is fertilizer. If the root system of solanine vegetables is injured and the fertilizer cannot be normally absorbed, fertilizer can be fed. Utilizing the roots for fatness, fertilizing fertilisers, inducing deep roots, absorbing more water and nutrients, and promoting the growth of eggplant vegetables, increased photosynthesis, and increased accumulation of dry matter, it is naturally easy to set fruit.
Temperature and humidity should be adjusted
Temperature is an important factor that affects the fruit set in eggplant, and too high or too low temperature can affect fruit setting. Therefore, it is necessary to adjust the temperature in the shed to make sure that the fruit and vegetables of the eggplant are normal. For example, the suitable temperature range for eggplant growth is 15°C~28°C. When the temperature in the greenhouse is often higher than 35°C or lower than 15°C, the eggplant will be pollinated and fertilized poorly, resulting in difficulty in fruit setting or malformation. The photosynthesis of eggplant was strong at 8 to 11 hours, and photosynthetic products accumulated about 60%. However, at 12 to 14 o'clock, there will be a brief photosynthesis break. At 14-16, photosynthetic activity went well and photosynthetic products accumulated about 30%. During the vigorous photosynthesis period, the temperature is generally controlled at 25 °C ~ 28 °C. At the same time, the temperature was controlled at 15°C~18°C in the middle of the night and 13°C~15°C in the latter half of the night. Here, in particular, the nighttime temperature should be mentioned. In general, higher temperatures are required during the first half of the night to facilitate the transport of photosynthetic products from the leaves to various organs during the day; lower temperatures are required during the latter part of the night to reduce the consumption of photosynthetic products. If the night temperature is too high, as many vegetable farmers now control the night temperature at 20°C or even higher, it will lead to leggy plants and fruition.
In winter, the outside temperature is low. In order to ensure the temperature in the shed, the ventilation time is shortened and the humidity in the shed is increased. If it is not controlled, excessive humidity in the shed will not only lead to disease epidemic, but also affect fruit setting. Therefore, the humidity in the shed must be strictly controlled during the winter. Corn stalks can be laid between the rows of greenhouses. This will not only absorb water vapour in the air, but also release heat and carbon dioxide during the rotting process, increase the temperature and reduce the humidity. At the same time, we must promptly deal with wet soil before the shed. It is best to cover the wet soil before the shed with a thin film, and drain the water under the shed film to the membrane to reduce the humidity in the shed. In addition, when the spray is sprayed, it will be sprayed with aerosols and aerosols to avoid artificially increasing the humidity in the booth.
Home Care Devices,Household Standby Medical Devices,Home Medical Equipment,Home Medical Services
Surgimed Medical Supplies Co.,Ltd , https://www.surgimedcn.com